S558-5999-K9-F

Description：XFRMR MODULE LAN 10/100BT 16P SM
Series：-
Mfr：Bel Fuse Inc.
Package：Tape & Reel (TR)

SKU:8469b07e2f9b Category: Pulse Transformers Brand: Bel Fuse Inc.

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

S558-5999-K9-F is listed in the Pulse Transformers range at ChipApex. The manufacturer field lists Bel Fuse Inc.. Its product description is XFRMR MODULE LAN 10/100BT 16P SM. Review the specifications below when checking this part for your BOM.

Pulse Transformers specifications for S558-5999-K9-F

Description：XFRMR MODULE LAN 10/100BT 16P SM
Series：-
Mfr：Bel Fuse Inc.
Package：Tape & Reel (TR)
Transformer Type：LAN 10/100 Base-T
Inductance：350µH
ET (Volt-Time)：-
Turns Ratio - Primary:Secondary：2CT:1CT Transmitter, 1CT:1CT Receiver
Mounting Type：Surface Mount
Size / Dimension：0.485" L x 0.285" W (12.32mm x 7.24mm)
Height - Seated (Max)：0.225" (5.72mm)
Operating Temperature：0°C ~ 70°C
Grade：-
Qualification：-

Pulse Transformers datasheet and documents for S558-5999-K9-F

S558-5999-K9-F

Pulse Transformers Overview

The S558-5999-K9-F is a surface-mount LAN pulse transformer module designed for 10/100BASE-T applications. It features an inductance of 350µH with a 1CT:1CT turns ratio for both transmitter and receiver channels. The component measures 27.94mm in length, 12.09mm in width, and has a maximum seated height of 5.71mm. It operates within a temperature range of 0°C to +70°C.

Pulse Transformers Feature Summary

Supports 10/100BASE-T Ethernet standards
Surface-mount construction for automated assembly
Integrated single-port magnetic design

Pulse Transformers Applications

Cable modem implementations
Ethernet network interface cards
LAN connectivity modules

Pulse Transformers Procurement Notes

Verify the specific suffix K9-F against the manufacturer's current datasheet to confirm pinout compatibility and mechanical dimensions. Ensure the ordering information matches the exact part number required for the target application circuit design.

Pulse Transformers Selection Notes

Select this component for designs requiring standard 10/100BASE-T isolation. Confirm that the PCB footprint accommodates the specified 27.94mm x 12.09mm dimensions and that the operating environment remains within the 0°C to +70°C thermal limits.

Pulse Transformers Part Context

This part belongs to Bel Fuse's discrete LAN transformer module family. These components provide galvanic isolation and signal coupling for Ethernet ports. The series supports various form factors to accommodate different board space constraints while maintaining IEEE 802.3 compliance.